brown



(No Model.)

B. P. BROWN.

PAPER BOX.

Patented July 15, 1890.

a gESSES M I ATTORN EYS.

with each other.

UNITED STATES PATENT OFFICE..-

ROBERT P. BROWVN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR 'lO BROVN dcBAILEY, OF SAME PLACE.

PAPER BOX.

SPECIFICATION forming part of Letters Patent No. 432,475, dated July 15,1890.

Application filed November 11, 1889. Serial No. 329,870. (No model.)

To all whom it may concern.-

Be it known that I, ROBERT P. BROWN, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Improvement in Paper Boxes, whichimprovement is fully set forth in the following specification andaccompanying drawings.

' My invention consists of an improvement in the class of knockdownpaper or pasteboard boxes, as shown in Letters Patent No. 374,886,granted December 13, 1887, to Robert P. Brown, assignor to Brown, Hestondo 00'. The box covered by said patentis constructed with tongues in theends thereof, which engage slits in the flaps of the sides when the boxis folded, and form exterior projections which are liable to catch andbe broken off,

thereby releasing the end flaps and mate-' rially affecting the utilityof the box.

The object of the present invention is to obviate said defect; and itconsists in forming said tongues, substantially as described, on theflaps of the sides of the box and inserting them through slits or slotsin the ends thereof, so that the said tongues will project into theinterior of the box and thus be guarded.

Figure 1 represents a plan View of a boxblank embodying my invention,the same be ing in fiat or open condition. Fig. 2 represents aperspective view of the box as set up for use.

Similar letters of reference indicate corresponding parts in the twofigures.

Referring to the drawings, A designates a box, the same being formed ofapiece of suitable paper, pasteboard, card-board, &c., em

bodying the bottom a, sides Z), and ends 0. At the ends of the sidepieces are flaps B, and in the end pieces 0 are slits O to receivetheprojecting tongues B of said flaps. In the flaps B are tongues D, and inthe end pieces 0 are other slits E to receive said tongues D,it beingnoticed that the tongues D are punched or otherwise cut out of the solidpart of the flaps B. The slits or slots 0 E and tongues D are formed atan angle to the side and end pieces I) c and at substantially rightangles The flaps B are tapering and the ends constitute tongues B, whichreadily enter the slits O. The tongues B D project in differentdirections, thus providing reliable means for locking the flaps B to theend pieces 0.

The box is primarily furnished to the consumer or customer in itsopened-out or unfolded condition, as seen in Fig. 1; hence a pile ofboxes may be readily made convenient for packing and transportation.

WVhen a box is required, the sides I) and ends care bent up, and theflaps B placed outside of said ends 0, thus leaving the tongues Doutside of the said ends 0. The ends or tongues B of the flaps B arethen inserted in the slits C, whereby the ends are within the box. Thetongues D are now fitted in the slits E, and also appear on the insideof the ends 0.

It will be seen that the flaps are doubly connected with the endpieces-via, at the places of entrance of said flaps into the slits C andat the places where the tongues D engage with said end pieces. Hence theconnection of each flap with the adjacent end pieces is at two points,whereby the sides and ends of the box are reliably secured and preventedfrom disconnection in every direction. By withdrawing'the tongues D fromthe slits E the flaps B may be readilyslipped from the slits O, and thesides and ends of the box thereby separated.

It is evident that the flaps may be formed on the end pieces, the slitsbeing correspondingly arranged in the sides so as to be engaged bytongues in said flaps, Without, however, producing different resultsfrom those stated.

I am aware that it is not new to construct a box of the characterdescribed, having its ends and sides provided with tongues and slits, bywhich the same are readily secured in place; but I' am not aware thatthe particular construction herein described and claimed is old, whereinthe sides are provided with 5 flaps formed with tongues in the bodythereof, said flaps having ends adapted to enter slits in the endportions of the box, and slits adapted to receive said tongues in saidend portions of the box, whereby each end portion rco 10 and the sideshaving flaps with projecting tongues 13 at the outer ends and innertongues D, said tongues extending substantially at right angles witheach other, and adapted to enter the said slits, respectively, from theouter sides thereof, said parts being combined 1 5 substantially asdescribed.

ROBERT P. BROWN. Witnesses:

JOHN A. WIEDERSHEIM, WM. 0. WIEDERsHEIM.

